Apparatus for grooving sugar-cane-crushing rollers.



` E. ABARCA. R GROOVING SUGAR CANE CRUSHING ROLLERS.

APPHCATION FILED NOV. 2.1917.

APPARATUS Fo Patented .Time 25, 1918.

2 SHEETS-SHEE L INVENTI? A TTORNE YS E. ABARC. APPARAus Foa @Roovm sus/m CANE CRUSH:

APPLICATlON flLED NOV. 2. 1917.

Patented June 25, 1918.

NG ROLLERS.

UNITED STATES PATENT OFFICE.

ENRIQUE ABARCA, OF SAN JUAN, PORTO RICO.

APPARATUS FOR GROOVING SUGAR-CANE-CRUSHING ROLLERS.

Application led November 2. 1917.

To ,ZZ whom 'it may concern:

Be it known that I, ENRIQUE ABARCA, a citizen of Porto Rico, and a resident o1 San Juan, Porto Rico, have invented a new and Improved Apparatus 'fortrrooving Sugarane-Grushing Rollers, ot' which the following is a full, clear, and exact description.

Among the principal objects which the present invention has in view are: to facilitate the operation of cutting inclined grooves in a roller tor macerating sugar cane; to automatically control the circular feed of said roller during thc cutting ot` said grooves therein; to provide means for accurately spacing said grooves to be cut; and to reduce the cost of cutting said grooves,

Draw/ings.

Figure 1 is a side elevation showing a crushing roller having inclined grooves cut therein, and the apparatus employed for cutting the same;

Fig. 2 is an end elevation oit' the sanne, part of the gage plate being cut away to show a portion of the end of the roller;

Fig. 3 is a side elevation on a reduced scale showing the roller as being operated upon and the rocking mechanism therefor as in one of the limits of its throw.

Description..

As seen in the drawings, a roller 8 used for crushing or macerating sugar cane, has a series of ridges 9 of greater or lesser projection formed thereon. These ridges have been cross-cut by a miller or other suitable cutting tool to form t-he nicks 10, as seen best in Fig. 1 oi the drawings.

Crushing rollers known as the Fuller type, have been constructed heretofore. in this manner, using any suitable form of cutting apparatus. Generally, the pitch ot the grooves formed by the successive nicks 10 have been marked on the rollers to guide the hand tools or the hand-setting oi. the machine tools.

lVhen employed the herein-disclosed apparatus, the roller is mounted in open bearings `formed on standards 11. The standards 11 are bolted to the bed 12 of a planer. The planer has a head 13, which is suitably equipped with a milling cutter 14 and driving mechanism therefor. The bed 12 and parts mounted thereon are fed to the cutter 14 at any suitable and desired rate.

Specification of Letters Patent.

Patented June 25, 1918.

Serial No. 199,961.

Clamped rigidly on one of the lrunnions 15 with which the roller is provided, is a face plate 16. The face plate 16 has bolting flanges 17, which in service are united by fastening bolts 18. The face plate 16 has a series o't holes 19 disposed about the said plate in equal divisions thereof. The holes 19 are provided to receive bolts 20, which extend through the plates 16 and 21. The plate 21 is loosely mounted on the trunnions 15 and is concentric with the plate 16.

Set out from the edge oi' the plate 21, is an extension bracket 22. The bracket 22 has a bolt 23, which forms a pivot for a link 241. The link 24 is pivotally attached by means of a bolt 25 to the sliding bar 26. The bar 26 is employed to rock the roller 8 on its bearings in the standard 11. To this end, `it is mounted in bearings in a bracket 2T, to move in a path parallel with the planes ot' the plates 16 and 21.

Adjacent the lower end of thebar 26, are rollers The rollers 28 track at the opposite edges of a bent track bar 29. The bar 29 is secured by bolts 30 to the side of the pedestal 31 of the planer on which the bed 'l2 mounted.

The bar 29 is bent to the angle formed by the platted path of the grooves formed hy the nicks 10. The bracket 27 is rigidly mounted on the bed 12 and travels with the bed around the same carrying the roller 8 under the cutter 14.

As an incident to the movement thus imparted to the roller 8, the bar 26 is shifted vertically carrying the bolt 25 therewith. The bracket is moved in correspondence with the bar 26 and the plate 21 ot' which said bracket is a part, is rotated on its center. .1s the plate 21 is operatively attached to the plate 16, the plate 16 and the roller 8 to which it is rigidly connected, are likewise rotated on their centers. It is obvious that the rotation thus effected in the roller corresponds exactly to the shape of the bar 29. In this manner, the shape of the grooves having the nicks 10, is regulated.

After each groove of the nicks 10 has been cut, the bolts 20 are removed to release the plates 16 and 21. The bed 12 and roller carried thereon is returned to the initial cutting position where the bar 26 is raised or brought to its initial operating position. The roller 8 and plate 16 connected therewith are then rotated until the next set of holes 19 register with the bolt-holes for the bolts 20. The bolts 20 aretlien readjusted to connect the two plates rigidly prior to inaugurating the operation of the cutter 14 and the movement of the bed l2. By this means accuracy in the spacing of the grooves formed by the nicks l0 is secured.

Claim.

An` apparatus as characterized eompris- 4ing apermanently positioned cutting tool;

a support for a crushing roller,4 said support embodying standards having bearings for said roller; means for moving said support v Copies of this patent may be obtained for and said roller carried thereonlengthwise of said roller under said cutting toolgand means for mechanically rotating said roller coincident to the movement of said support under said cutting tool, said means embodying a pattern member substantially disposed in a plane parallel With the aXis of Said roller, and a crank-like member rigidly engaging said roller and operatively engaging said pattern member to be osoillated thereby during the longitudinal movement of saidvsupport and said roller.

ENRIQUE ABARCA.

five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

